Nothing is uploaded
With Lines (and Shapes) the photo is decoded and converted by your browser, in a background thread of this page; it is never sent anywhere. Only the optional AI lines kind uploads a photo, and it asks first.
Keeps the drawing's own lines · Made on your device
Turn a child's drawing into a coloring page
Photograph or scan a drawing, then print its outlines to color again. It is converted on this device with Lines; nothing is uploaded.
Free for personal and commercial use, including KDP — no credit needed. Designs are not exclusive: the same settings always draw the same page.
Same style, settings and number always draw the same page.
Coloring book PDF
10 PDF pages · KDP needs 24+
Free for commercial use, including KDP — no credit needed. Not exclusive: same settings, same pages.
or drop it on the page preview · JPEG, PNG or WebP, up to 20 MB
Showing the sample scene
Converted on this device; the photo is never uploaded or saved.
Page & line settings
Adds 0.125 in to the width and 0.25 in to the height for books printed with bleed.
Sizes follow KDP's trim, bleed and margin help page (read 27 October 2026).
Sample scene
Drop the photo to convert it
Other formats
Ready.
Before and after
A crayon drawing photographed on a desk, with a paper fold and uneven light (a drawing we made for this page), then converted here. Lines keeps each crayon stroke as one bold outline and drops the paper; Shapes is the wrong tool for a drawing, because it outlines both sides of every stroke and picks up the fold.
Photographing or scanning the drawing
The converter keeps what is darker than the paper around it, so a clean, evenly lit picture matters more than any slider.
- Lay the drawing flat in daylight, near a window but out of direct sun. Turn the flash off: it leaves a bright spot in the middle and dark corners.
- Hold the phone straight above the paper, so the edges are parallel, and keep your shadow and the phone's shadow off the page.
- Fill the frame with the drawing and crop away the table in your photo app. Anything left around the paper becomes lines.
- A scanner is even better: scan in color at 300 DPI and save as JPEG or PNG. Scans have no shadows or folds.
- Choose the photo in the generator above. This page opens it in Lines with the settings below; a wide drawing switches the page to landscape on its own.
Settings by drawing
Starting points; the preview updates as you move a slider, and Compare with photo shows what was kept.
| Drawing | Detail | Smoothing | Clean up specks | Line weight | Notes |
|---|---|---|---|---|---|
| Crayon or marker outlines | 40 | 1 | 3 | Bold | The usual case: each stroke becomes one outline. Use these |
| Pencil drawing | 60 | 1 | 2 | Medium | Pencil is faint; more Detail keeps light strokes. Press harder next time, or trace it with a marker first. Use these |
| Drawing already colored in | 35 | 2 | 4 | Bold | Filled areas turn back into outlines where the color changes, ready to color again. Use these |
| On lined or squared paper | 30 | 2 | 6 | Bold | Low Detail drops most printed lines; light blue lines vanish first. Plain paper works best. Use these |
The drawing stays on your device
Nothing is kept
Reloading or closing the page discards the photo. Only your slider settings are remembered in this browser, so the next drawing opens with the same settings.
Check it yourself
Open this page, turn off Wi-Fi or mobile data, then choose a drawing: it still converts, because the work happens on your device.
What to do with it
- Color it again. Print a few copies so your child can try new colors on the same picture.
- Add a name or a date in Caption under Page & line settings; it prints under the drawing.
- Color on a tablet. Download the PNG (Other formats) and open it in a drawing app; Bold lines leave fewer gaps for the fill tool.
- Make a family coloring book. Convert each drawing, download each PDF and combine them with any PDF tool; patterns from the generator can fill the rest.
Guides
Tested advice for better pages. All guides
- How to turn a photo into a coloring pageTurn a photo into a printable coloring page in five steps, plus a test of what makes a photo convert well: we ran one picture six ways and counted the areas.
- A custom coloring book from your own photosTurn family or pet photos into a custom coloring book: print at home, order a bound KDP proof copy, or use a printing service. Page counts, binding and real costs.
- Coloring page sizes and paper, worked outWhat size to print coloring pages, what happens when an A4 page meets Letter paper, how line weight changes with size, and which paper weight to use, in lb and gsm.
Questions
Should I use Lines or Shapes for a drawing?
Lines. A drawing is already made of lines, and Lines keeps each stroke as one outline. Shapes is for photos of pets and people: on a drawing it outlines both sides of every stroke.
Why are some lines broken?
The stroke was faint or the light was uneven. Raise Detail, or photograph the drawing again in even daylight. Light colors such as yellow are the faintest; going over them with a darker crayon helps.
Can I make the drawing bigger on the page?
The drawing is fitted to the page inside a margin of about half an inch. Choose Fill the page under Photo on page to crop it to the paper's shape, or crop the photo close before choosing it.
Is it free?
Yes: no account, no limit on pages and no watermark. Pages you make are yours to print, share or use commercially.